I have worn this for a triathlon and multiple open water swims. For the swims I've worn it under my wet suit to store car keys - works great and can't even notice that it's there. It settles in the small of the back so it doesn't affect streamline or fit. It isn't waterproof, but I'm able to release the key from the electronics of my key fob. For cycling and runs, I store my cell phone, small wallet and car keys very comfortably. Also works very nice for attaching your race number bib, held the number in place for the whole race. Belt is fully adjustable so you won't experience any bounce. You really will forget you have it on.

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9/14/2013Not Durable

By Triathlete

I've tried this belt twice...both times the zipper broke within 8-10 months. The tabs which hold a race number also came "unstitched". Very poor construction. Not durable for those who run every day and need something that can stand up to HIGH usage.

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Amphipod is based on one simple concept: the proof's in the pudding innovation. It has strived to create product solutions that allow you to feel like you're running free, while still carrying just what you need.

Amphipod products are meticulously engineered to be durable, ultra-lightweight, ultra-clean, super-comfortable and bounce-free. Basically, simple and clean. Its philosophy of cutting edge design, testing, 3D ergonomic analysis, and sound low-profile physics, has led Amphipod in becoming one of the leaders in the industry.

With CAD solid model engineering, innovation in materials, and quality construction principles, Amphipod has produced products that enhance endurance performance time and again. The process is important, but what really matters is simple: proof's in the pudding.

Amphipod AirFlow Microstretch Race Belt

The Amphipod AirFlow Microstretch Race Belt is so light and low-profile that you'll hardly know it's even there. The fully adjustable stretch belt expands to four times its size.